Substation inspection robot system applying dual power supplies to supply power

The invention relates to a substation inspection robot system applying dual power supplies to supply power. The inspection robot system comprises an inspection robot and a built-in battery module (1) and also comprises dual power supplies, wherein the dual power supplies both comprise AC 220V power supply modules and solar power supply modules which are connected to the battery module (1); when the inspection robot is working, the solar power supply modules are used for charging the battery module (1); and after the inspection robot stops working, the AC 220V power supply modules or the solar power supply modules are used for charring the battery module (1). Compared with the prior art, the inspection robot system has the advantages that the problems of short inspection time, frequent charging and the like of the substation inspection robot are effectively solved, and meanwhile, the inspection robot system also has the advantages of simplicity in structure and the like, and is safe and convenient to use.